Citation: Shenzhou Li, Jianyun Liu, Shuo Duan, Tanyuan Wang, Qing Li. Tuning the oxygen evolution electrocatalysis on NiFe-layered double hydroxides via sulfur doping[J]. Chinese Journal of Catalysis, ;2020, 41(5): 847-852. doi: S1872-2067(19)63356-5 shu

Tuning the oxygen evolution electrocatalysis on NiFe-layered double hydroxides via sulfur doping

State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China

Received Date: 14 October 2019
Revised Date: 18 November 2019

Fund Project: This work was supported by the National Natural Science Foundation of China (21603078, 21705052, 51602223).

We report a facile way to prepare sulfur (S) doped Ni_4/5Fe_1/5-layered double hydroxide (LDH) electrocatalysts for oxygen evolution reaction (OER). The influence of S doping amount on the OER activity of the resulted NiFe-LDHs was studied and the optimal surface S content was ca. 0.43 at%. The developed S-doped NiFe-LDH exhibits excellent OER catalyst activity in 1.0 M KOH with overpotential of only 257 mV at the current density of 10 mA cm^-2. Moreover, the catalyst could maintain high activity after 30 h stability test. The high activity of the S-doped NiFe-LDH catalysts may originate from the synergistic effect between S and the Fe sites. This work provides a simple but efficient way to improve the OER performance of transition metal oxides/(oxy)hydroxides.
- Oxygen evolution,
- Electrocatalysis,
- Layered double hydroxides,
- Sulfur doping,
- Water splitting
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